-79.62% is the change from 319 to 65
Calculation steps:
[( 65 - 319 ) ÷ 319] x 100 = -79.62%
Formula
Percentage change = [(65 - 319) / 319] x 100
Subtract the new number by the original number
65 - 319 = -254
-254 ÷ 319 = -0.7962382445141066
-0.7962382445141066 x 100 = -79.62%